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Flight records through . Security counts through .

Which IAH to OKC flight is punctual? United 6178, 7:25 am.

90% on time across 71 flights in the last 3 months, never cancelled.

Find your flightIAH security
DepartsFlightOn time
7:25 amUA 617890%
2:35 pmUA 618989%
4:35 pmUA 633489%
8:20 pmUA 108486%
9:35 pmUA 528185%
9:46 amUA 434485%
12:10 pmUA 618084%
12:10 pmUA 430177%
8 of 12 regular flights, ranked by arrivals on time, June to August 2026.

When do the flights leave? 12 regular flights, 7:25 am to 9:35 pm.

UA 4344 was cancelled most often, 3% of the time.

Flight records,

  1. UA 6178 7:25 am, 0% cancelled 90%
  2. UA 4048 9:46 am, 0% cancelled 75%
  3. UA 4344 9:46 am, 3% cancelled 85%
  4. UA 4301 12:10 pm, 0% cancelled 77%
  5. UA 6180 12:10 pm, 0% cancelled 84%
  6. UA 6189 2:35 pm, 0% cancelled 89%
  7. UA 6334 4:35 pm, 0% cancelled 89%
  8. UA 5278 6:12 pm, 0% cancelled 75%
  9. UA 2304 8:12 pm, 1% cancelled 67%
  10. UA 1084 8:20 pm, 0% cancelled 86%
  11. UA 5281 9:35 pm, 0% cancelled 85%
  12. UA 5709 9:35 pm, 0% cancelled 70%

What time should I fly? The 1 pm departures.

90% landed on time; at 6 pm, 75%. Thursday was the best day, Saturday the worst.

Flight records,

DepartsLanded on time
7 am90%
9 am87%
12 pm84%
1 pm90%
2 pm86%
4 pm87%
6 pm75%
7 pm79%
8 pm77%
9 pm79%

When is IAH security busiest? 6 am, then 8 am.

Calmest around 9 am. Houston IAH security, hour by hour.

Security counts,

4a8a12p4p8p
Mon
Tue
Wed
Thu
Fri
Sat
Sun
MonTueWedThuFriSatSun
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p

Friday, 6 am

4,540

people screened, all terminals.